The Ruger SR22 is an American made .22 calibrepistol produced by Sturm, Ruger & Co. of Southport, Conneticut. The SR22 was released in 2012, adding to Ruger's established range of .22 calibre pistols, with ergonomic design at its heart.[2]

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The SR22 was released in 2012, and resembles the Walther P22, although the SR22 is only three quarters of the size.[3] The SR22, unlike Ruger's other .22 pistols, such as the Mark III, is designed as an all rounder, open to various potential markets such as hunting.[1] The SR22 is also able to use the most potent forms of the .22 Long Riflecartridge, while being one of the lightest pistols made by Ruger.[1]

As is increasingly common for .22 pistols, the SR22 is manufactured from polymer and aluminium, with the frame set in polymer and the slide manufactured from aluminium.[2] This means that the SR22 only weighs 1.1lb (0.49kg), lighter than their other lightweight pistols such as the 22/45.[2] The use of polymer also means that an ergonomic grip can be made to better fit the shooter's hand, while also making the SR22 ambidextrous (with both a grip safety and magazine release on either side of the frame.[3]

The SR22 is manufactured with a picatinny rail, located under the barrel (and infront of the trigger guard) allowing aftermarket attachments to be added.[2] It can also be ordered with a threaded barrel for muzzle attachments such as silencers, as well as a choice of finishes for the slide (anodised black or silver).[2] The barrel, manufactured from stainless steel to avoid corrosion, is replaceable, as are the polymer grips which attach to the frame.[2]

The SR22, as the name eludes to, is chambered to accept the .22 Long Rifle cartridge, one of the most popular target pistol calibres. These rounds are shot from a ten round magazine, which slots into the grip.[2] New SR22s are sold with two extra magazines as standard.[2]